Sergei Linkin 
Moscow, Russia 
Work2crowd blog author
20.08.2026
0
5
How to protect forums and comments from bots without blocking real users
How to protect forums, comments, and publishing forms from automated spam. Comparing reCAPTCHA, Cloudflare Turnstile, Arkose Labs, and xCaptcha.
12.11.2021
0
1619
How to choose high-quality platforms for installing crowd links
External links are important - a theory that requires no proof